Here’s something some of my fellow biologists might find useful: http://www.vadlo.com/.
It’s a search engine, like Google, but restricted to biology. It seems to work pretty well. Pulls up quite a few protocols and the like. A potentially more useful search category is the ability to search for powerpoint presentations. This could come in handy for biology teachers looking for good slides.
This is a good search engine. I liked the cartoons too.